CN220562944U - Vertical net-laying mechanism of airplane arresting device - Google Patents
Vertical net-laying mechanism of airplane arresting device Download PDFInfo
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- CN220562944U CN220562944U CN202322308928.3U CN202322308928U CN220562944U CN 220562944 U CN220562944 U CN 220562944U CN 202322308928 U CN202322308928 U CN 202322308928U CN 220562944 U CN220562944 U CN 220562944U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 15
- 230000003139 buffering effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 abstract description 3
- 238000012938 design process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model provides an upright net-laying mechanism of airplane arresting equipment, and belongs to the technical field of machine manufacturing. The vertical net laying mechanism comprises a base, a vertical frame, a motor, a rope winding wheel, a steel rope, a shaft pin, a buffer support, a roller bracket and a travel switch. The vertical net-laying mechanism can realize the automatic vertical net-laying function of the airplane arresting equipment and can bear a net body with the weight of half ton or more. The roller support is added in the net erecting and laying mechanism, the steel cable pulling force direction is changed, and the problem that clamping stagnation is easy to occur in the net erecting process is effectively solved. In the design process, a reasonable design method is summarized through theoretical calculation.
Description
Technical Field
The utility model belongs to the technical field of machine manufacturing, and particularly relates to a vertical net-laying mechanism of airplane arresting equipment.
Background
The aircraft arresting device is an important field facility of an airport, is mainly used for arresting an aircraft rushing out of a runway due to unexpected reasons, and plays an important role in guaranteeing the taking-off and landing safety of the aircraft. When the aircraft arresting device works, the net body needs to be hung up, and when the aircraft arresting device does not work, the net body is put down, so that a vertical net-laying mechanism is needed. As shown in fig. 1, the conventional net erecting mechanism mainly supports the net by two supporting rods, and the net erecting mechanism cannot realize an automatic net erecting and laying function and cannot meet the requirement of erecting the net when the net body is heavy. In view of this, the utility model provides a vertical net-laying mechanism, which mainly realizes automatic net-laying and net-laying, and meets the requirement of vertical net for large-weight net bodies (half ton and above).
Disclosure of Invention
The utility model aims to provide a vertical net-laying mechanism of an airplane arresting device, which can realize an automatic vertical net-laying function and can meet the requirement of vertical nets of large-weight net bodies (half tons and more).
The aim of the utility model is realized by the following technical scheme:
an aircraft arresting device vertical net-laying mechanism comprises a base 3, a vertical frame 6, a motor 1, a rope winding wheel 2, a steel rope 5, a pulley assembly 7, a shaft pin 10, a buffer strut 8, a roller bracket 4, a travel switch 9 and an anchor bolt 11.
The base 3 is rectangular, and the bottom of the base is fixed on a concrete foundation through foundation bolts 11.
The vertical frame 6 is of a triangular frame structure, the bottom of the vertical frame 6 is connected to one end of the base 3 through a shaft pin 10, and the vertical frame 6 can rotate around the shaft pin 10 to realize the functions of net erecting and net releasing.
The motor 1 is arranged at the other end of the base 3, and the rope winding wheel 2 is arranged on an output shaft of the motor 1 and can rotate along with the motor.
The steel cable 5 is wound on the cable winding wheel 2, and the other end of the steel cable 5 is connected with the vertical frame 6. The top end of the vertical frame 6 is provided with a pulley assembly 7 for hanging the net body.
The vertical frame 6 is provided with a buffer support column 8 which plays a role in buffering when the net is put down.
The travel switches 9 are arranged on the base 3, two groups are respectively arranged on the inner side and the outer side of the shaft pin 10, the specific installation positions are matched with the touching positions of the vertical frames when the net is erected and laid, and when the specified travel of the net is erected and laid, the travel switches 9 work to cut off the power supply of the motor 1.
The roller support 4 is arranged at the middle position of the cross beam at the bottom of the vertical frame 6, the distance between the roller support 4 and the shaft pin 10 is calculated, the roller on the roller support 4 can rotate around the shaft center of the roller support 4, and the roller support 4 is used for lifting the steel cable in the initial stage of erecting the net and changing the pulling force direction of the steel cable.
The distance of the roller bracket 4 from the axle pin 10 shown satisfies the following condition:
wherein M is the mass of the vertical frame, g is the gravitational acceleration, M is the rated output torque of the motor, R is the radius of the rope-winding wheel, L 1 L is the distance between the shaft pin and the center of gravity of the vertical frame 2 Is the distance from the shaft pin to the connection of the steel cable and the vertical frame.
The utility model has the beneficial effects that: the vertical net-laying mechanism can realize the automatic vertical net-laying function of the airplane arresting equipment and can bear a net body with a large weight (half ton and more). The roller support is added in the net erecting and laying mechanism, the steel cable pulling force direction is changed, and the problem that clamping stagnation is easy to occur in the net erecting process is effectively solved. In the design process, a more reasonable design method is summarized through theoretical calculation.
Drawings
Fig. 1 is a schematic diagram of a conventional net erecting mechanism.
Fig. 2 is a schematic structural view of the vertical net setting mechanism according to the present utility model.
Fig. 3 is an enlarged view of i in fig. 2.
Fig. 4 is an enlarged view of ii in fig. 2.
Fig. 5 is a schematic design.
In the figure: 1, a motor; 2, a rope winding wheel; 3, a base; 4, a roller bracket; 5 steel ropes; 6, erecting a frame; a pulley assembly; 8, buffering a pillar; 9 travel switches; 10 shaft pins; 11 anchor bolts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings.
As shown in fig. 2, the utility model provides an aircraft arresting device vertical net-laying mechanism, which comprises a base 3, a vertical frame 6, a motor 1, a rope winding wheel 2, a steel rope 5, a pulley assembly 7, a shaft pin 10, a buffer strut 8, a roller bracket 4, a travel switch 9 and an anchor bolt 11.
The base 3 is rectangular, and the bottom of the base is fixed on a concrete foundation through foundation bolts 11.
The vertical frame 6 is of a triangular frame structure, the bottom of the vertical frame 6 is connected to one end of the base 3 through a shaft pin 10, and the vertical frame 6 can rotate around the shaft pin 10 to realize the functions of net erecting and net releasing.
As shown in fig. 3, the motor 1 is mounted at the other end of the base 3, and the rope winding wheel 2 is mounted on an output shaft of the motor 1 so as to be rotatable together with the motor.
The steel cable 5 is wound on the cable winding wheel 2, and the other end of the steel cable 5 is connected with the vertical frame 6. The top end of the vertical frame 6 is provided with a pulley assembly 7 for hanging the net body.
The vertical frame 6 is provided with a buffer support column 8 which plays a role in buffering when the net is put down.
The travel switches 9 are arranged on the base 3, two groups are respectively arranged on the inner side and the outer side of the shaft pin 10, the specific installation positions are matched with the touching positions of the vertical frames when the net is erected and laid, and when the specified travel of the net is erected and laid, the travel switches 9 work to cut off the power supply of the motor 1.
As shown in fig. 2 and 4, the roller bracket 4 is installed at the middle position of the bottom beam of the vertical frame 6, the distance from the roller bracket 4 to the shaft pin 10 is calculated, the roller on the roller bracket 4 can rotate around the shaft center of the roller bracket 4, and the roller bracket 4 is used for erecting the steel cable at the initial stage of erecting the net and changing the pulling force direction of the steel cable.
The working mode of the vertical net-laying mechanism of the airplane arresting device is as follows:
1) When the 'vertical net' button is pressed, the motor 1 is started to drive the rope winding wheel 2 to wind the steel rope 5, the vertical frame 6 is pulled up, when the specified vertical net height is reached, the bottom of the vertical frame 6 touches the travel switch 9, the power supply is cut off immediately, the motor 1 is stopped, and the vertical net action is completed.
2) Pressing the 'net-discharging' button, the motor 1 rotates reversely to drive the rope winding wheel 2 to rotate reversely, the steel rope 5 is discharged, the vertical frame 6 is slowly put down, when the vertical frame 6 contacts the ground and touches the travel switch 9, the power supply is immediately cut off, the motor 1 stops, and the net-discharging action is completed.
Based on the structure, the net erecting and net releasing functions are realized by the motor driving, the force is conducted by the steel cable, the structural form, the size design, the motor torque and the like of the net erecting and net releasing functions are determined, and the design and calculation method is as follows:
as shown in FIG. 5, the point A is the motor installation position, the point B is the shaft pin position, the point C is the roller bracket position, the point D is the center of gravity of the vertical frame, and the point E is the connection position of the steel cable and the vertical frame.
F1 is the gravity of the vertical frame, and F2 is the tension of the steel cable:
F1＝mg (1)
wherein m is the mass of the vertical frame, g is the gravitational acceleration.
F2＝M/R (2)
Wherein M is rated output torque of the motor, and R is radius of the rope winding wheel.
M1 is the torque generated by the gravity of the vertical frame, and M2 is the torque generated by the tensile force of the steel rope:
M1＝ F1cosθ 1 ·L 1 (3)
in θ 1 Is the included angle between the straight line BD and the horizontal plane, L 1 For the distance from point B to point D。
M2＝ F2sinθ 2 ·L 2 (4)
In θ 2 Is the included angle between the straight line CE and the straight line BE, L 2 For the distance from point B to point E
Wherein L is the distance from the point B to the point C.
If the net erecting function is to be realized, M2 is more than or equal to M1, at the moment, theta 1 Taking a maximum of 90 deg., it is thus possible,
therefore, the value of L in the design process can meet the formula (6).
Claims (6)
1. The vertical net-laying mechanism of the aircraft arresting device is characterized by comprising a base, a vertical frame, a motor, a rope winding wheel, a steel rope, a shaft pin, a roller bracket and a travel switch;
the base is fixed on a concrete foundation; the vertical frame is of a triangular frame structure, the bottom of the vertical frame is connected to one end of the base through a shaft pin, and the vertical frame can rotate around the shaft pin to realize the functions of net standing and net releasing;
the motor is arranged at the other end of the base, and the rope winding wheel is arranged on an output shaft of the motor and rotates along with the motor; the steel cable is wound on the cable winding wheel, and the other end of the steel cable is connected with the vertical frame;
the travel switch is arranged on the base, and works to cut off the power supply of the motor when the travel switch reaches the prescribed travel of standing and discharging the net;
the roller support is arranged at the middle position of the cross beam at the bottom of the vertical frame, and the roller support is used for erecting the steel cable at the initial stage of erecting the net and changing the pulling force direction of the steel cable.
2. An aircraft arresting apparatus net erecting and releasing mechanism according to claim 1, wherein a buffering support is arranged on the upright frame, and the buffering function is achieved when net releasing is performed.
3. An aircraft arresting device net erecting mechanism according to claim 1 or 2, wherein a pulley assembly is arranged at the top end of the vertical frame for hanging a net body.
4. An aircraft arresting device vertical screen release mechanism according to claim 1 or 2, wherein the travel switches are arranged in two groups, one group is respectively arranged on the inner side and the outer side of the shaft pin, and the specific installation position is matched with the touching position of the vertical frame during vertical screen release.
5. An aircraft arresting device vertical screen release mechanism according to claim 3, wherein the travel switches are divided into two groups, and a group is respectively arranged on the inner side and the outer side of the shaft pin, and the specific installation position is matched with the touch position of the vertical frame during vertical screen release.
6. An aircraft arresting device standing net mechanism according to claim 1, 2 or 5, wherein the rollers on the roller support are rotatable about their own axes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308928.3U CN220562944U (en) | 2023-08-28 | 2023-08-28 | Vertical net-laying mechanism of airplane arresting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322308928.3U CN220562944U (en) | 2023-08-28 | 2023-08-28 | Vertical net-laying mechanism of airplane arresting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220562944U true CN220562944U (en) | 2024-03-08 |
Family
ID=90102069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322308928.3U Active CN220562944U (en) | 2023-08-28 | 2023-08-28 | Vertical net-laying mechanism of airplane arresting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220562944U (en) |
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2023
- 2023-08-28 CN CN202322308928.3U patent/CN220562944U/en active Active
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